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Unread 04-14-2014, 02:48 PM   #1
Maertz
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Fuel Pump Wiring Diagram

I am wondering if anyone can let me know what each wire does on the fuel pump. If i recall correctly there are 4 of them. I found a wire diagram but suck with electronics.

http://www.trailduty.com/temp/fuelpump.pdf

It seems like itd be the 4 wires in the upper right corner, but for some reason i swear one was pure black. I will have to double check when I get home. If that diagram is correct i would use c1 as my ground, but would i use c5 or c1 on the new fuel pumps power wire. My new fuel pump has a ground and positive only.

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Unread 04-14-2014, 02:57 PM   #2
73azbronco
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DB/OR (Dark Blue Orange?) as power, and BK (Black) as ground. Verify with volt/ohmmeter.

The DB and DB/DG are sensor wires for the fuel control. Not sure how in your application you would handle those. Note the resistor inside the fuel pump.
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Unread 04-14-2014, 03:03 PM   #3
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Quote:
Originally Posted by 73azbronco View Post
DB/OR (Dark Blue Orange?) as power, and BK (Black) as ground. Verify with volt/ohmmeter.

The DB and DB/DG are sensor wires for the fuel control. Not sure how in your application you would handle those. Note the resistor inside the fuel pump.
At the moment i think I would disregard those sensor wires. As for the resistor i dont think I will need? I have a standard inline fuel pump.
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Unread 04-14-2014, 03:46 PM   #4
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Quote:
Originally Posted by Maertz View Post
As for the resistor i dont think I will need? I have a standard inline fuel pump.
The thing after the fuel pump motor in the diagram isn't a resistor. It's the symbol for a circuit breaker or PTC protection device.
Probably the PTC in this application.
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